ATMEGA162-16PJ Atmel, ATMEGA162-16PJ Datasheet - Page 190

• Manufacturer Part Number: ATMEGA162-16PJ
• Description: IC MCU AVR 16K 5V 16MHZ 40-DIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA162-16PJ

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -

USART Baud Rate
Registers – UBRRL
and UBRRH
190
ATmega162/V
(1)
• Bit 2:1 – UCSZ1:0: Character Size
The UCSZ1:0 bits combined with the UCSZ2 bit in UCSRB sets the number of data bits (Char-
acter Size) in a frame the receiver and transmitter use.
Table 76. UCSZ Bits Settings
• Bit 0 – UCPOL: Clock Polarity
This bit is used for synchronous mode only. Write this bit to zero when asynchronous mode is
used. The UCPOL bit sets the relationship between data output change and data input sample,
and the synchronous clock (XCK).
Table 77. UCPOL Bit Settings
Note:
• Bit 15 – URSEL: Register Select
This bit selects between accessing the UBRRH or the UCSRC Register. It is read as zero when
reading UBRRH. The URSEL must be zero when writing the UBRRH.
• Bit 14:12 – Reserved Bits
These bits are reserved for future use. For compatibility with future devices, these bit must be
written to zero when UBRRH is written.
Bit
Read/Write
Initial Value
UCPOL
0
1
UCSZ2
1. The UBRRH Register shares the same I/O location as the UCSRC Register. See the
0
0
0
0
1
1
1
1
Transmitted Data Changed
(Output of TxD Pin)
Rising XCK Edge
Falling XCK Edge
ing UBRRH/ UCSRC Registers” on page 184
register.
URSEL
R/W
R/W
15
7
0
0
R/W
14
UCSZ1
R
–
6
0
0
0
0
1
1
0
0
1
1
R/W
13
R
–
5
0
0
R/W
12
R
–
4
0
0
UBRR[7:0]
UCSZ0
0
1
0
1
0
1
0
1
R/W
R/W
11
3
0
0
Received Data Sampled
(Input on RxD Pin)
Falling XCK Edge
Rising XCK Edge
section which describes how to access this
R/W
R/W
Character Size
5-bit
6-bit
7-bit
8-bit
Reserved
Reserved
Reserved
9-bit
10
2
0
0
UBRR[11:8]
R/W
R/W
9
1
0
0
R/W
R/W
8
0
0
0
UBRRH
UBRRL
2513K–AVR–07/09
“Access-